Functions (quadratic)

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

• Not Sure

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Which of the statements is true for the function $f\left(x\right)=\ 6x^2+12x-48$  

• The zeros are 2 and 4.

• The zeros are -2 and -4.

• The zeros are 2 and -4.

• The zeros are -2 and 8.

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the axis of symmetry for x² - 8x + 6 = 0?

• x = 4
• x = -4
• y = 4
• y = -4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the roots (x-intercepts) 5x²+15x

• 5x(x+3)

• (0,0) and (3,0)

• (0,0) and (-3,0)

• (0,0) and (0,-3)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What are the zeros of this problem?

• -4, 2

• -2, 4

• -16

• -4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

• 1
• 3
• 2
• 4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What are the x-intercept(s) of y=(x+1)²-16 ?

• (3,0)

• (3,0) and (-5,0)

• No X-intercepts

• (0,-15)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Which of the following is in factored form?

• $h\left(x\right)=x^2+2x-15$

• $h\left(x\right)=\left(2x-5\right)\left(x+1\right)$

• $h\left(x\right)=5\left(x-2\right)^2+3$

• $h\left(x\right)=x\left(x+3\right)-5$

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

• -6,6

• 3,-3

• 2,-2

• No solution

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A